Brand new biochemical sponge filter!
Provides biological filtration to the aquarium, helps to stable water quality
Increase the oxygen solubility
Working noiselessly
Good permeability, easy to clean
Adhere smooth surface with suction cup
Water inlet hole diameter: approx. 18mm
Package included:
1 X Biochemical filter
2 X Sponge
1 X Suction cup
List Price: $ 6.99
Deal Price: $ 3.29
http://www.6deal.com/en/aquarium-fish-tank-super-biochemical-bio-sponge-filter.html